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added type check to calcOpticalFlowPyrLK; added data type specifications in this function description.

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Vadim Pisarevsky
2011-06-25 09:04:10 +00:00
parent 07b07481ec
commit cf7f189fb2
2 changed files with 25 additions and 15 deletions
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modules/video/doc/motion_analysis_and_object_tracking.rst
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@@ -15,9 +15,9 @@ Calculates an optical flow for a sparse feature set using the iterative Lucas-Ka
:param nextImg: Second input image of the same size and the same type as ``prevImg`` .
:param prevPts: Vector of points for which the flow needs to be found.
:param prevPts: Vector of 2D points for which the flow needs to be found. The point coordinates must be single-precision floating-point numbers.
:param nextPts: Output vector of points containing the calculated new positions of input features in the second image.
:param nextPts: Output vector of 2D points (with single-precision floating-point coordinates) containing the calculated new positions of input features in the second image. When ``OPTFLOW_USE_INITIAL_FLOW`` flag is passed, the vector must have the same size as in the input.
:param status: Output status vector. Each element of the vector is set to 1 if the flow for the corresponding features has been found. Otherwise, it is set to 0.